<?php
/**     
  *
  * Copyright (c) 2009, Persistent Systems Limited
  *
  * Redistribution and use, with or without modification, are permitted 
  *  provided that the following  conditions are met:
  *   - Redistributions of source code must retain the above copyright notice, 
  *     this list of conditions and the following disclaimer.
  *   - Neither the name of Persistent Systems Limited nor the names of its contributors 
  *     may be used to endorse or promote products derived from this software 
  *     without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  
/**
  *
  * This file contains the definition of Resource
  */
  
class Resource
{
    //definition of all erro messages thrown by context tracking logic
    const EntityAlreadyContained = 'The context is already tracking the entity';	
    const EntityNotContained = 'The context is not currently tracking the entity';
    const NoRelationWithDeleteEnd = 'One or both of the ends of the relationship is in the deleted state';
    const RelationAlreadyContained = 'The context is already tracking the relationship';
    const NoRelationWithInsertEnd = 'One or both of the ends of the relationship is in the added state';
    
    //definition for data service specific headers
    const DataServiceVersion = '1.0';
    const MaxDataServiceVersion = '1.0';
    //definition of possible Accept and Content-Types headers
    const Accept_JSON = 'application/json';
    const Accept_ATOM = 'application/atom+xml,application/xml';	
    const Content_Type_JSON = 'application/json'; 
    const Content_Type_ATOM = 'application/atom+xml,application/xml';
    
    //error message for version mismatch
    const VersionMisMatch = 'Response version mismatch. Client Library Expect version 1.0, but service returns response with version ';
}
?>